夹层抑制底水锥进规律数值模拟研究  

Numerical simulation study on law of suppression of bottom water in cone

作　　者：葛婧楠 喻高明[1] 傅宣豪[1] 

机构地区：[1]长江大学,湖北武汉430100

出　　处：《能源与环保》2017年第6期195-199,共5页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：基金项目:塔河9区三叠系油水流动规律研究(ky2015-s-017)

摘　　要：由于底水能量充足及油层非均质性的影响,底水在水驱过程中会发生水锥,而当有夹层存在时水锥又表现出不同的形态和一定的规律。采用数值模拟反演机理模型,研究了底水锥进过程以及底水上窜绕过夹层的过程,详细讨论了均质储层、正韵律储层下单一夹层和多韵律段储层条件下多个夹层所在的位置、大小和厚度对底水锥进的影响程度。研究结果表明,各情况下均得到夹层规模存在一个最佳值,能都较好地抑制底水锥进,使开采效果得到提高,进而提高最终采收率。人工夹层在油田开发堵水防水中具有重要作用,该研究将为后续实际油藏数值模及生产实际提供方向性和实用性,可通过调整开发策略,明显改善油藏开发效果。Water cones have different shapes and certain rules at water flooding in bottom water reservoirs,especially in the multi- inter-bedded formations when reservoirs have sufficient bottom water energy or heterogeneity. T h e process w as studiand the moving of the bottom water around the sandwich by numerical simulation of inversion m e c h a non bottom water coning process w a s discussed in detail,including interlining position,size and geneous reservoir and positive rhythm reservoir,as well o n multiple sandwich in multimeter reservoir. T h e results suggest that an optimal value of the sandwich size during all the cases. It can control bottom water coning better,improveultimate recovery- Artificial interlayer plays an important role in oilfield development and water plugginlation results will provide direction and practicality for subsequent actual reservoir numerical model a nd the actual voir exploitation effect will be improved obviously through adjusting development strategies.

关 键 词：底水油藏 锥进 夹层 均质 正韵律 多韵律段 夹层规模 夹层渗透率 

分 类 号：TE34[石油与天然气工程—油气田开发工程]